The spoiler has a 5mm peg at the bottom that fits the BH wheeljack. The pipes has a ball socket on the underside that is attached to a ball joint on the vehicle door. The ball joint base from shapeways was designed for first edition wheeljack so it does not fit the BH door - which I had to tool it by cutting off the clip and glue it to the door with epoxy putty.

ratchet and ironhide's present idw bodies seem to be loosely based on a stripped down version wfc soundwave so a head swap and some vehicle mods on those.arcee has a figure coming out later this year directly based on her comic appearance so it will just need to be repainted. prowl i will need to do a little more research though i have an idea using foc jazz with some modifications